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Investigating the Effect of Salinity on the Density and Stability of Water
Water with varying amounts of dissolved salt are dyed and then used to compare densities. The objective is to discover the effect of salinity, and therefore density, on ocean water on the stability of the ocean. Many branches of science...
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Changing Planet: Ocean Acidification - the Chemistry is Less than Basic!
A video and laboratory investigation are highlights to this lesson on acidification of ocean water due to increased atmospheric carbon dioxide. Using bromothymol blue (BTB) as an indicator, pupils analyze the amount of carbon dioxide...
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What Are The Properties of Sea Water?
Ninth graders conduct research on the subject of sea water. They use a variety of resources to obtain information. There are helpful resource links listed in the lesson. In conjunction with the research students make inquiry of the...
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Changing Planet: Rising Ocean Temperatures - Rising Sea Levels
As an anticipatory set, young environmental technicians watch a video about how ocean temperatures seem to be changing along with the global climate. They perform a laboratory demonstration with the purpose of observing what happens to...
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Properties of Fresh and Sea Water
Students work with three stations to demonstrate the properties of water. They explore water's boiling point, freezing point, and its ability to store heat.
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Water Works Wonders
Students examine where water is found in the world, how we use it, and the various forms it takes. They observe the refraction of light through a prism, record the day and night sky over a week's time, and create a topographic model of...
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One World Ocean
Young scholars compare and contrast the properties of salt water in the oceans/seas and freshwater elsewhere on the planet. They also analyze mixing caused by currents in the ocean, including the effects of warm and cold water as well as...
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The Open Ocean, What is it and How Does it Change?
Students investigate the ocean environment. In this ocean lesson plan, students discover the physical properties of the ocean. Over two days, students work in small groups investigating ocean maps and creating water currents.
American Museum of Natural History
Journey to the Bottom of the Sea
Properties of water make it essential for the life of marine species. Learners complete an online game to answer questions about the role water fulfills for organisms in ocean habitats. The game emphasizes the properties of water and how...
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Liquid Rainbow
Students develop their own techniques for drawing a small sample of solutions into a straw. They hypothesize ways to increase the density of water, and discuss how salt-free rainwater tends to float on top of salty seawater.
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Ocean Impacts of an El Nino Event
Students study sea surface height and temperature and other characteristics of an El Nino. In this ocean impacts lesson students examine the factors that influence an El Nino or La Nina.
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Ocean Murals
Students identify characteristics of water. They describe the process by which light decreases and pressure increases as water depth increases. They demonstrate the principle of water pressure in a small group experiment.
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Earth: The Water Planet
Students elicit data on the water cycle, ocean topography, and island formation in this six lesson unit. The ocean floor and the properties of water are examined through a variety of discussions and hands-on experiments.
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Seashore Explorers
There are three separate lessons within this resource that can be used together, or that can each stand alone. In the first, five simple activities allow junior scientists to examine the amazing properties of water. In the second, they...
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Let's Think About Water
Students explore the different forms that water can take and conduct simple experiments to demonstrate some of its properties in each state. They watch a short video that illustrates some of these concepts.
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El Nino
Explore the properties of water and the affects of El Nino. Middle schoolers will learn about the devastation an El Nino can cause as well as the definition of El Nino. Additionally, they will discover the cause of El Nino along with the...
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Oobleck
Students explore "matter." In this literacy and three states of matter lesson, students listen to Bartholomew and the Oobleck by Dr. Seuss, then work in groups to explore "oobleck" (cornstarch and water mixture) with their five senses....
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Is the Hudson River Too Salty to Drink?
Students explore reasons for varied salinity in bodies of water. In this geographical inquiry lesson plan, students use a variety of visual and written information including maps, data tables, and graphs, to form a hypothesis as to why...
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Ocean Currents
Students label the names, relative temperature, distribution, and direction of flow of major ocean currents on a world map. They also explore and model the natural forces that affect the movement of ocean currents through demonstrations...
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Devising a Set of Experiments to Test Water for Dissolved Substances
Students work together to test water samples for pollutants. They design data tables to collect and record their observations. They complete discussion questions to end the lesson.
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Water Density and Stability Lab
Students observe how different water densities and salinity control the depth at which different water masses occur. Submarines are used as a case study. This is a well-designed with an excellent worksheet.
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Sea Water Mixing and Sinking
Learners investigate the role of temperature and salinity in determining seawater density. They use a Temperature-Salinity Diagram to examine the effects of mixing on density.
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Sink or Float
Students explore water properties by conducting a class experiment. In this buoyancy lesson, students make predictions as to whether or not specific objects will sink or float in water. Students conduct the experiment and record their...
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What Are Elements?
Students investigate elements by by defining scientific terms. In this Periodic Table of Elements lesson, students utilize a glass of water, and powdered fruit drink to perform a lab activity demonstrating properties of certain...